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I bet you cannot keep a disc made of cork in the centre of a glass of water.

I bet I can balance a plastic card on the rim of a glass full of water, and I can even place some coins on the overhanging part of the card without the card tipping over.

I bet I can tilt the balance of the seesaw without touching the glasses or the seesaw itself, or without changing the amount of water in the glasses.

I bet a ‘trained’ ball of aluminium foil will obey my oders.

I bet I can boil water at room temperature.

I bet I can crush an empty can without using muscle strength.

I bet I can make coins placed under a glass disappear, using ice and salt.

I bet I can lift up the ice cube using a string without making a loop or tying a knot around it.

I bet I can swap the liquids in the glasses using only a small piece of paper.

I bet I can make a transparent bead disappear.

I bet I can make an egg mirror using charcoal and a bowl filled with water.